mirror of
https://github.com/silverstripe/silverstripe-framework
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Namespace all templates Move difflib and BBCodeParser2 to thirdparty Remove deprecated API marked for removal in 4.0
214 lines
3.7 KiB
PHP
214 lines
3.7 KiB
PHP
<?php
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namespace SilverStripe\Forms\HTMLEditor;
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use SilverStripe\Assets\File;
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use SilverStripe\Forms\ReadonlyField;
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use SilverStripe\Forms\TextField;
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/**
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* Encapsulation of an image tag, linking to an image either internal or external to the site.
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*/
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class HTMLEditorField_Image extends HTMLEditorField_File
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{
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/**
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* @var int
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*/
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protected $width;
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/**
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* @var int
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*/
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protected $height;
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/**
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* File size details
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*
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* @var string
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*/
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protected $size;
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public function __construct($url, File $file = null)
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{
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parent::__construct($url, $file);
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if ($file) {
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return;
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}
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// Get size of remote file
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$size = @filesize($url);
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if ($size) {
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$this->size = $size;
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}
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// Get dimensions of remote file
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$info = @getimagesize($url);
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if ($info) {
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$this->width = $info[0];
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$this->height = $info[1];
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}
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}
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public function getFields()
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{
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$fields = parent::getFields();
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// Alt text
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$fields->insertBefore(
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'CaptionText',
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TextField::create(
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'AltText',
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_t('HTMLEditorField.IMAGEALT', 'Alternative text (alt)'),
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$this->Title,
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80
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)->setDescription(
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_t('HTMLEditorField.IMAGEALTTEXTDESC', 'Shown to screen readers or if image can\'t be displayed')
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)
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);
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// Tooltip
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$fields->insertAfter(
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'AltText',
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TextField::create(
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'Title',
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_t('HTMLEditorField.IMAGETITLETEXT', 'Title text (tooltip)')
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)->setDescription(
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_t('HTMLEditorField.IMAGETITLETEXTDESC', 'For additional information about the image')
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)
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);
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return $fields;
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}
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protected function getDetailFields()
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{
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$fields = parent::getDetailFields();
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$width = $this->getOriginalWidth();
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$height = $this->getOriginalHeight();
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// Show dimensions of original
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if ($width && $height) {
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$fields->insertAfter(
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'ClickableURL',
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ReadonlyField::create(
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"OriginalWidth",
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_t('AssetTableField.WIDTH', 'Width'),
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$width
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)
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);
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$fields->insertAfter(
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'OriginalWidth',
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ReadonlyField::create(
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"OriginalHeight",
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_t('AssetTableField.HEIGHT', 'Height'),
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$height
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)
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);
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}
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return $fields;
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}
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/**
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* Get width of original, if known
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*
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* @return int
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*/
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public function getOriginalWidth()
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{
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if ($this->width) {
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return $this->width;
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}
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if ($this->file) {
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$width = $this->file->getWidth();
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if ($width) {
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return $width;
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}
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}
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return null;
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}
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/**
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* Get height of original, if known
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*
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* @return int
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*/
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public function getOriginalHeight()
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{
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if ($this->height) {
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return $this->height;
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}
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if ($this->file) {
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$height = $this->file->getHeight();
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if ($height) {
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return $height;
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}
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}
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return null;
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}
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public function getWidth()
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{
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if ($this->width) {
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return $this->width;
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}
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return parent::getWidth();
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}
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public function getHeight()
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{
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if ($this->height) {
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return $this->height;
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}
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return parent::getHeight();
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}
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public function getSize()
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{
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if ($this->size) {
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return File::format_size($this->size);
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}
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return parent::getSize();
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}
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/**
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* Provide an initial width for inserted image, restricted based on $embed_width
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*
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* @return int
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*/
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public function getInsertWidth()
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{
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$width = $this->getWidth();
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$maxWidth = $this->config()->insert_width;
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return $width <= $maxWidth
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? $width
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: $maxWidth;
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}
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/**
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* Provide an initial height for inserted image, scaled proportionally to the initial width
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*
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* @return int
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*/
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public function getInsertHeight()
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{
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$width = $this->getWidth();
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$height = $this->getHeight();
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$maxWidth = $this->config()->insert_width;
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return ($width <= $maxWidth) ? $height : round($height * ($maxWidth / $width));
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}
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public function getPreviewURL()
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{
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// Get preview from file
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if ($this->file) {
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return $this->getFilePreviewURL();
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}
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// Embed image directly
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return $this->url;
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}
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}
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